code: def _cancelOrders(self, orders):
      brk = self.getBroker()
      for o in orders:
          self.info("Canceling order %s" % (o.getId()))
          brk.cancelOrder(o)
  
file_path: pyalgotrade/samples/bccharts_example_2.py
imports: from pyalgotrade import bar
  from pyalgotrade import strategy
  from pyalgotrade import plotter
  from pyalgotrade.technical import vwap
  from pyalgotrade.barfeed import csvfeed
  from pyalgotrade.bitstamp import broker
  from pyalgotrade import broker
label_desc: Use image node_id 3 for calling the VWAPMomentum obj's underlying member method code with example usage: obj._cancelOrders(orders) without return types